Dead-end terminal



April 15 1924. l

I J. M. BROWN 4 DEAD END TERMINAL Filed April'7, 1920 WITNESSES: INVENTOR k James M670 wn. Q. BY

Patented Apr. 15, 1924.

UNITED STATES PATENT OFFICE}.

JAMES M. BROWN, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

DEAD-END TERMINAL.

Application filed April 7, 1920.

To all whom it may concern.-

Be it known that I, JAMES M. BROWN, a citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny 6 and State of Pennsylvania, have invented a new and useful Improvement in Dead-End Terminals, of which the following is a specification.

My invention relates to electrical dead-end terminals or connectors and particularly to adjustable terminals for dead ending and adjusting the slack in conductors.

One object of my invention is to provide a device of the above indicated character that shall be simple and durable in construction, economical to manufacture and effective in operation.

Another object of my invention is to provide an electrical terminal, constructed on the order of a turnbuckle, to permit the adjustment of a conductor, in which a main body portion of insulating material assumes the mechanical load and effectively insulates the conductor with respect to its supporting means.

A switchboard structure is usually provided, at its rear side, with many small control and other circuit conductors which, in certain instances, are so intermingled as to present a disorderly appearance and to render manipulation thereof more or less difli cult.

Attempts have been made to arrange these conductors in more orderly and effective fashion, and my invention is particularly adapted for use in connection with an arrangement by which a plurality of conduc tors are mounted parallel or in other symmetrical relation across the rear of a switchboard.

In practicing my invention, I provide a substantially tubular main body structure of insulating material in which a sleeve is disposed. The sleeve is provided with a longitudinal surface groove to receive the end of a conductor that is bent back into the groove after its insertion through the sleeve and is prevented from withdrawal from the groove and, thereby, from disconnection from the sleeve, by the wall of the tubular member. A screw-threaded member that projects from the opposite end of the tube is secured to, and prevented from turning in, the tube by a transverse pin member that extends Serial No. 371,959.

through the tubular member and the screw. The 0 posite end of the screw is placed throug an opening in a bracket or other supporting member and secured by anut or other holding means by which the tension in the conductor may be adjusted.

' Figure 1 of the accompanying drawings is a side View, partially in elevation and partially in section, of a connector constructed in accordance with my invention, and Fig. 2 is a View, taken along the line IIII of Fig. 1.

A main insulating body member 1, preferably constructed of fiber or other suitable relatively-hard and strong insulating material, is provided with openings 2 and 3 of different diameters to provide a shoulder 15 therein. A cylindrical sleeve 1, preferably of metal, and of substantially the same diameter as the opening 2, is disposed in the opening 2 adjacent to the shoulder 15, and is provided with a longitudinal groove 5 in its outer surface for the reception of the bared end 6 of an insulated conductor 7 that extends through the opening 3 and the sleeve 4 and is bent back into the groove 5. A screw-threaded member 8 is provided with a head portion 9 dis osed in one end of the opening 2 and hel therein by a cotter pin 10 that extends through the member 1 and the head portion 9. The opposite end of the as member 8 projects through an openin 11 in a bracket 12, or other device for attac ent to the rear side of a switchboard, and is adapted to receive a nut 13 and a washer 14 by which the member 1 and, consequently, the conductor 7 may be adjusted longitudinally and held with respect to the bracket 12.

While I have shown and described a particular form of my invention, changes may be effected therein without departing from u the spirit and scope thereof, as set forth in the appended claims.

I claim as my invention:

1. A terminal comprising a tubular insulating member having two portions of different interior diameters to provide a shoulder, a sleeve having a longitudinal surface groove and disposed in the larger of said portions against said shoulder, and a conductor extending through the smaller of said portions and said sleeve and having a portion bent back into said roove.

2. A terminal comprismg a tubular insulating member having two portions of ditferent interior diameters to provide a shoul der, a sleeve having a longitudinal surface groove disposed in, and closely fitting, the larger of said portions against said shoulder. and an insulated conductor having a portion disposed in the smaller o1 said portions d an uninsulated portion extending throu ii said sleeve and bent back into said groove.

3. A terminal comprising a tubular insulating member having a portion of reduced interior diameter at one end to provide a shoulder, a sleeve having a longitudinal surface groove disposed therein against said shoulder, a conductor extending through the smaller end of said insulating member and said sleeve having portion bent back into said groove and a screw having one end reeoeot:

secured in the opposite end of said insulating member and projecting therefrom.

T. A terminal for a conductor comprising a tubular insulating member having a por tion of reduced interior diameter to provide a shoulder, and a 'leeve member disposed therein and retained against longitudinal displznieuient in one direction by the said shoulder. the said sleeve member being provided W' h a longitudinal surface groove to receive a treverselv oent portion of the conductor u'herebv the conductor is attached to the sleeve.

In test mony ivneree'f. l have hereunto subscribed in name th s 30th nay of March, 1920.

JAMES M. BRONN. 

